Filtration device for liquid purification

a filtration device and liquid purification technology, applied in the direction of filtration separation, separation process, treatment involving filtration, etc., can solve the problems of significantly reducing the filtration capacity of the filter, visual control of the work of the filter, and insufficient resistance of the filter to the liquid flow, so as to confirm the effect of the invention

Inactive Publication Date: 2002-05-14
ELECTROPHOR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

on. It is done in order to confirm effectiveness of the invention by comparing results of purifying different solutions through the filters. Conditions and results of the experimental in

Problems solved by technology

As medical and ecological information has increasingly shown that water pollution leads to illnesses, and as pollution of natural water resources, caused at least in part by population growth, has also increased, it has become obvious that it is necessary to use purified drinking water.
Currently used filters employing granular adsorbents do not completely provide adequate resistance against the liquid flow.
Plugging of the end filter significantly reduces the filtration capacity of the filter.
Another problem is the visual control of the work of the filter, and controlling the quantity of the liquid that is being filtered.
Prior art filters are subject to another problem.
These bubbles block pores, making liquid flow through the filter more difficult.
This makes the filters more complicated and expensive, and limits the possible scope of their use.
Another significant drawback of known filter designs, wherein filtration takes place by the downward flow caused by gravity, is a complete drying out of the filter after the end of the filtration process.
This limits the select

Method used

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  • Filtration device for liquid purification
  • Filtration device for liquid purification
  • Filtration device for liquid purification

Examples

Experimental program
Comparison scheme
Effect test

example 1

There are compared two water filters with the identical interval volumes. Each filter contains 90 ml of the adsorbing carbon material. This adsorbing carbon material comprises AQUALEN activated carbon fiber (manufactured by Aquaphor Corporation, St. Petersburg, Russia) and granular activated carbon G55C-8 (manufactured by PICA Corp., USA) in a weight by weight ratio of 1:7 (4.8 g of Aqualen, dry weight, and 33 g of granular carbon). In one of the filters the water flows downwardly (as in the prior art) and in the second filter water flows in an upward direction according to the present invention. The time to flow 1 liter of liquid is 15 minutes. Phenol solution with a concentration of 10 mg / L was used as the test solution. The comparison results are shown in Table No. 1.

example 2

The experimental conditions are the same as in Example 1 except that a solution containing E. Coli index 100 (100 E. Coli bacteria per 1 liter) was used. Results of the experiment are shown in Table No. 1.

example 3

The experimental conditions are the same as in Example 1 except that a cation-exchange resin SR-10 (manufactured by SYBRON Corp., USA) in the amount of 90 grams was used. The time for flowing 1 liter of liquid was 4 minutes 3 seconds. Copper solution (10 mg / g) is used as a model Solution. Experimental results are shown in Table No. 1.

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Abstract

The invention is directed to purification of liquids, such as drinking water using filters, wherein filtration is effected while the liquid flows upwardly. The invention includes both the method and a device enabling the method to be carried out. The device is constructed to intake impure liquid at the bottom of the filter and initially to effect flow by filling liquid to above the filter outlet near the top, and maintaining flow thereafter by virtue of the presence of a low internal pressure that develops as the liquid passes through the system.

Description

The present invention relates to the purification of liquids such as water; and, more particularly, to improved purification devices wherein liquid flow is initiated by gravity through a filter containing an adsorption-bactericidal material, and the flow continues without using any additional sources of external pressure. Use of the improved device causes a flow pattern of liquid passing therethrough of such nature that the adsorption and bactericidal purification is enhanced and the quality of the purified liquid is thereby significantly higher than heretofore available.As medical and ecological information has increasingly shown that water pollution leads to illnesses, and as pollution of natural water resources, caused at least in part by population growth, has also increased, it has become obvious that it is necessary to use purified drinking water. The public clearly demands that the quality of its drinking water must be improved to ever greater levels. The need to filter water...

Claims

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Application Information

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IPC IPC(8): B01J47/02B01J47/00C02F1/00C02F1/42C02F1/50C02F1/28
CPCB01J47/002B01J47/024C02F1/003B01J20/20C02F1/42C02F1/283C02F1/50C02F2201/006C02F2307/04B01J47/012
Inventor PIMENOV, ALEXANDER V.RUSINOV, GLEBSHMIDT, JOSEPH L.LIEBERMAN, ALEXANDER I.
Owner ELECTROPHOR INC
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